Hose-pipe.



LL- W. SHAW.

HOSE PIPE.

APPLIoATloN FILED 114111.31, 190e.

Patented Apr. 11, 1911.

UNITED sTAfrEs PATENT oEEroE.

JOHN' W. SHAW, 0F PLAINFIELD, NEW JERSEY, ASSIGNO 0F ONE-HALF TO MOINTOSH, OF PLAINFIELD, JERSEY.

Hoen-PIPE:

To all whom it may concern:

Be it known that I, JOHN W. SHAW, a citizen of the UnitedStates, residing at Plainfield in the county of Union and State of New jersey, have invented certain new and useful Improvements in Hose-Pipes, of

which the following is a specification.

-My invention relates to hose pipes, particularly those used in connection -with fire hose and the object thereof is to provide novel and efficient means for overcoming the reactionary force at the nozzle when under pressure of the water or other fluid with the result that with this force controlled the nozzlecan be easily handled by one person and the'eiiciency of the hose pipe and ma# nipulation thereof greatly increased. Moreover, a great amount of danger is thereby eliminated, particularly when the hose pipe is being used on buildin s and elevations where the'firemen have iliculty in maintainingtheir footing in manipulation of the hose pige. y l Broa l speaking 'my invention consists in provi ing within a hose pipe aninnen tube in such manner as to forni an annular air space or cushioning chamber between the section of a hose pipe embodying my invention; Fig. 2 an elevation of the tube therein; Fig. 3 a detail section showing a modified methodof connection or attachment of the outer end of the tube to the pipe; Fig. 4 a lon 'tudinal section of a modified form of my evice; Fig. 5a similar view of another modified form'thereofyand Fig. 6 a detail view of a modified form showing thetube integral with the hose pipe.

Specification of Letters Patent.

Application led March 31, 1909. Serial No. 486,954.

Patented Apr. 1 1, 1911.

Referring to the embodiment of my invention as illustrated in Fi s. 1 and 2 the hose pipe which is adapte to bevscrewed upon the end of the hose is made in two sections 1 and 2. In the present instance, the section 2 has at its inner end a socket portion 3 which is internally screw-threaded to screw upon the outer'end of the hose pipe section 1 as clearly indicated in Fi 3. Within the hose pipe is arranged a tu e 4 of less diameter than any portion of the hose pipe in which it is located and arranged ax1al1 thereof. This tube may have a straig t bore, that is a bore of uniform diameter from end to end or maybe tapered as desired but in the present instance the same is shown as having such straight-bore. This tube may be secured in place within the hose pipe in suitable manner but in the particular form now being described the same is clamped in place in' the act of screwing the two ose pipe sections together. To this end the tube is `provided with a circumferential flan e 5 toward its outer end, which flange 1s clamped between the outer edge of the section 1 and the bottom of the socket 3 of the other section, gaskets 6 being interposed between said parts as shown. The extreme outer end of this tube is in this form of device provided with a flange 7 which is inclined to correspond with the taper of the bore of the hose pipe with the result that when two sections of the hose pipe are screwed together such outer end of the tube will lit closely and form a perfect joint with such bore.

The described construction and relation of parts forms an annular space or chamber 8 between the tube and the hose pipe 1, which space is closed at its front end but open at its rear end. It is in this space that the air is trapped and compressed by the rangement enables the air cushion to act most effectively in thus balancing or overcoming the' reactionary force.

Instead of forming the extreme front end of the tube, with an inclined ange the same may be tapered considerably at such end and moreover may be brazed or otherwise permanently secured directly to the inner bore of the section 2 as indicated in the modified form illustrated in Fig. 3.

My invention ma partake of other embodiments without eparting from the spirit of my invention.` For instance,.as shown in Fig. 4, the two sections of the pipe may be secured together by an intermediate connection or coupling nut which is itself employedas a means of attachment-of the tube. As shown the two sections 9 Yand 10 of the hose pipe are connected to ether by means with another screw-threaded portion 11h fied form of construction containing screwing externally u on the other or hose pipe section 9. The tube 12 is located within the hose pipe in axial alinement therewith but in this instance the same is secured in suitable manner, as by brazing, to the internal bore of the portion 11 of the coupling nut. For convenience in handling the pipe the coupling nut is here shown as provided with handles 11 and as will be obvious the same provision of handles might be made in respect to the socket portion 3 of the fo'rm of device illustrated 1n Fig. 1. In the modied form of device illustrated in Fig. 4 an annular airspace or cushionin chamber 13 is provided between the tube an the hose pipe, similar to the cushioning space or chamber 8 and the actionand the results are the same.

\ In Fig. 5 I have illustrated another mdieatures of the two previously described modications illustrated in Figs. 1 and 4. In this modified form the two sections 14 and 15 of the hose pipe are connected together by means of the coupling nut 16, the outer end 16 of which, however, corresponds with the bore of the nozzle proper marked 15 and is screw-threaded into the socket portion 15a of such latter section. In this instance the tube 17 is secured by brazing or otherwise to said outer end portion 16a so as to be permanently attached thereto. By preference, ring gaskets 18 and 19 are employed between the clamped parts. In this modified form as in the other forms an air space or cushioning chamber 20 is formedv in the same manner and for the same urpose as the cushioning chambers hereinbe ore referred to. It is obvious' that if desired the coupling nut 16 could be provided with grasping handles. such as shown in Fig. 4.

.pipe and o It will be understood that the hose pipe need not be made insections (in two or even three as herein shown) but in a single piece and also that the tube need notibe made separate from the ho'se pipe for as will be obvious from Fig. 6, such tube may be formed integral therewith. In this modied form of construction, the tube 21 is integral with the hose'pipe 22 and may be considered a continuation f the inner walls thereof, the hose pipe being swelled out to form the interposed cushioning chamber v23 which connects at its rearward end with the interior of the hose pipe by means of the openings 24, although the communication may be had by means of holes.

By reason of my invention I am enabled I toA provide an eiicient hose pipe which is capable of being manipulated by one person andA without impeding or interferin with the pressure and speed of flow of the water or other iuid. Moreover, I accomplish these results in an'extremely simple and inexpen-` sive manner.

I claim:

1. In a hose pipe, the combination, with such hose pipe made in two sections, of a tube arran ed within and axially'of the hose pipe and 0% less diameter to form an annular air space or cushioning chamber between the tube and hose pipe, such space beingclosed at its front end and open at its rear end, one

section of the hose pipe having a socket portion engaging the other section, and the tube its ends and clamped between the sections of` the tapering nozzle, one end of the inner tube fitting' within and held from movement by the 'tapering nozzle.

3. In a hose pipe, the combination, with such hose pipe made in two sections, of a tube arran ed within and axially of the hose less diameter to form an annular air space or cushioning chamber between the tube and hose pipe, said space being closed at its front end and open at its.rear end and said tube being clamped in place by said two hose pipe sections, and grasping handles connected with the hose pipe at the joint between its sections.

4. In a hose pipe, the combination, with such hose pipe made in two sections, of a tube arran ed within and axially of the hose tube and hosepipe', such space being closed connected with said socket portion of one of a; its firolllit end and open at 1ilts rear end, clxine the sections. o sai ose ipe sections aving a soc et portion engaging the other section, and the JOHN W SHAW' 5 tube having a circumferential flange which Witnesses:

is clamped within such socket portion by the JOSEPH T. VAIL, hose plpe sections, and grasping handles WILLIAM McINTosH. 

